Round Hole Perforated Metal Product Benefits
Round hole perforated metal is a versatile and highly functional material used in various industrial, architectural, and commercial applications. Known for its durability, strength, and aesthetic appeal, this type of perforated metal features uniformly spaced round holes that can be customized to suit specific needs.
Whether you’re looking to enhance airflow, provide filtration, add an element of design, or improve noise control, round hole perforated metal offers a solution that combines both form and function. Explore our range of options to find the perfect fit for your next project.
Uses and Applications
Round hole metal products can be used for numerous functional and decorative purposes, including:
- Separating ore or rock in mining applications
- Security in windows, gates, and doors
- Air filtration
- Noise reduction
- Enhancing the appearance of retail store displays
- Various types of screens and vents



Marco – Your Round Hole Perforated Metal Supplier
Marco Specialty Steel offers round hole perforated metal in standard 60-degree staggered, 45-degree staggered and straight-line patterns. With a staggered option, the direction of the stagger typically coincides with the short dimension of the metal sheet, while a straight-line hole pattern is usually parallel to the long dimension.
You can find round hole perforated metal sheets made from a wide assortment of top-quality materials, including carbon steel, stainless steel 304, galvanized metal and aluminum.
Round Hole Perforated Metal Custom Punching

If a 60- or 45-degree or straight-line perforation pattern doesn’t quite fit your specialized application, just let us know! Our 35,000-square-foot Houston, TX facility includes a fully equipped in-house fabrication department that can create everything from a simple to a more complex customized product of the highest quality.
We are available 24/7. Call after hours (713) 705-5942
Round Hole Pattern Samples

To see standard Round Hole patterns that Marco Specialty Steel offers, please click here.
Round Hole Perforated Metal Tables
Stainless Steel Perforated Sheet
304 & 316 Perforated Stainless Steel Sheet
Marco Specialty Steel inventories perforated stainless steel sheet in stainless steel grades 304SS and 316SS. We offer a variety of stock patterns and can custom punch patterns to your specifications. The following items are generally available from stock, or with a very short delivery. If you don’t see what you are looking for, remember, we can custom punch many patterns.
| File Download | Guage | Holes | Centers | Open Area % |
|---|---|---|---|---|
| 30 | .020" | .045" | 20% | |
| 26 | 1/32" | 1/16" | 22% | |
| 26 | .033" | .055" STRAIGHT | 29% | |
| 24 | 3/64" | 3/32" | 23% | |
| 26 | .050" | .066" STRAIGHT | 52% | |
| 26 | .050" | 5/64" | 37% | |
| 22 | 1/16" | 3/32" | 40% | |
| Round .063in Dia Circle on .10938in Centers | 22,26 | 1/16" | 7/64" | 30% |
| Round .063in Dia Circle on .125in Centers | 20,18 | 1/16" | 1/8" | 23% |
| 22,20 | 5/64" | 1/8" | 35% | |
| Round .109375in dia Circle on .15625in Centers | 20,18,16 | 3/32" | 5/32" | 33% |
| 22 | .117" | 5/32" | 51% | |
| Round .125in Dia Circle on .188in Centers | 26-11 | 1/8" | 3/16" | 40% |
| Round .15625in dia Circle on .1875in Centers | 20-16 | 5/32" | 3/16" | 63% |
| 24-14 | 3/16" | 1/4" | 51% | |
| Round .1875in dia Circle on .3125in Centers | 18,11 | 3/16" | 5/16" | 33% |
| Round .25in Dia Circle on .3125in Centers | 22-16 | 1/4" | 5/16" | 58% |
| Round .25in Dia Circle on .375in Centers | 20-14,11 | 1/4" | 3/8" | 40% |
| Round .375in Dia Circle on .5in Centers | 10 | 3/8" | 1/2" | 51% |
| Round .375in Dia Circle on .563in Centers | 18,16,11 | 3/8" | 9/16" | 40% |
| Round .5in Dia Circle on .6875in Centers | 20,16,14,11 | 1/2" | 11/16" | 48% |
| 11 | 3/4" | 1" | 51% |
Carbon Steel Perforated Round Hole Sheet and Plate
Marco Specialty Steel inventories perforated carbon steel sheet in a variety of stock patterns and can custom punch patterns to your specification. The following items are generally available from stock, or with a very short delivery. If you don’t see what you’re looking for, we can custom punch many patterns.
| Gauge | Holes | Center | Open Area % |
|---|---|---|---|
| 26 | .020" | .043" | 20% |
| 26 | .027" | .050" STRAIGHT | 23% |
| 22 | 1/32" | 1/16" | 22% |
| 22-18 | 3/64" | 3/32" | 23% |
| 24 | .050" | .066" STRAIGHT | 45% |
| 22-18 | 1/16" | 3/32" | 45% |
| 16 | 1/16" | 7/64" | 30% |
| 20-16 | 1/16" | 1/8" | 23% |
| 20-14 | 5/64" | 1/8" | 36% |
| 20-14 | 3/32" | 5/32" | 33% |
| 24 | 3/32" | 3/16" | 23% |
| 18 | .117" | 5/32" | 51% |
| 22,18-14,11 | 1/8" | 3/16" | 40% |
| 12 | 1/8" | 7/32" | 29% |
| 18 | 9/64" | 3/16" | 51% |
| 20-16 | 5/32" | 3/16" | 63% |
| 20,10 | 5/32" | 1/4" | 36% |
| 22,18,16 | 3/16" | 7/32" | 67% |
| 24-14 | 3/16" | 1/4" | 51% |
| 18-3/16"PL | 3/16" | 5/16" | 33% |
| 22 | 1/4" | HEX | 79% |
| 22-16 | 1/4" | 5/16" | 58% |
| 20-1/4"PL | 1/4" | 3/8" | 40% |
| 16 | 1/4" | 3/8" STRAIGHT | 35% |
| 18 | 1/4" | 1/2"STRAIGHT | 23% |
| 18-14,10,3/16"1/4"PL | 5/16" | 7/16" | 50% |
| 16-1/4"PL | 3/8" | 9/16" | 40% |
| 20-14,10-1/4"PL | 1/2" | 11/16" | 48% |
| 10-1/4"PL | 5/8" | 7/8" | 46% |
| 16,11,3/16",1/4"PL | 3/4" | 1" | 51% |
| 10-1/4"PL | 1" | 1-3/8" | 48% |
| 3/16",1/4"PL | 1-1/4" | 1-5/8" | 54% |
| 10-1/4"PL | 1-1/2" | 2" | 51% |
| 10-1/4"PL | 2" | 2-1/2" | 58% |
| 10,3/16"PL | 2-1/2" | 3" | 63% |
| 10,1/4"PL | 3" | 3-1/2" | 67% |
| 10 | 3-1/2" | 4" | 70% |
| 10 | 4" | 4-1/2" | 72% |
Galvanized Round Hole Perforated Metal Sheet
Marco Specialty Steel inventories perforated galvanized metal sheet. Galvanized metal sheet is rust-resistant which makes is useful in corrosive environments. The following items are generally available from stock, or with a very short delivery. If you don’t see what you are looking for, we can custom punch many patterns.
| Guage | Holes | Centers | Open Area % |
|---|---|---|---|
| 26 | .037" | .055" STRAIGHT | 36% |
| 18 | 5/64" | 1/8" | 36% |
| 22-18 | 3/32" | 5/32" | 33% |
| 20,18,16,14,11 | 1/8" | 3/16" | 40% |
| 18 | 3/16" | 7/32" | 67% |
| 18,16 | 3/16" | 1/4" | 51% |
| 22 | 1/4" | HEX | 79% |
| 16 | 5/16" | 7/16" | 46% |
| 16 | 3/8" | 1/2" | 51% |
Round Hole Aluminum Perforated Sheet
We inventory perforated aluminum sheet in stock patterns and can custom punch patterns to specification. Aluminum is a corrosion resistant and lightweight metal. The following items are generally available from stock, or with a very short delivery. If you don’t see what you are looking for, we can custom punch many patterns.
| Holes | Centers | Gauge | Open Area % |
|---|---|---|---|
| .023" | .042" | 22 | 24% |
| .033" | .055" | 20 | 29% |
| .050" | .066" | 20,18 | 36% |
| .050" | 5/64" | 20,18 | 37% |
| 1/16" | 1/8" | 22-14 | 23% |
| 5/64" | 1/8" | 16,14 | 35% |
| 3/32" | 5/32" | 20-14 | 33% |
| 1/8" | 3/16" | 22-11 | 40% |
| 5/32" | 3/16" | 20-14 | 63% |
| 3/16" | 7/32" | 16 | 67% |
| 3/16" | 1/4" | 22-11 | 51% |
| 3/16" | 5/16" | .125",3/16"PL | 32% |
| 3/16" | 3/8" | 18,14 | 23% |
| 1/4" | HEX | 20 | 79% |
| 1/4" | 5/16" | 20 | 58% |
| 1/4" | 3/8" | 20-12, 1/4"PL | 40% |
| 3/8" | 9/16" | 14 | 48% |
| 1/2" | 11/16" | 14 | 48% |
| 3/4" | 1" | .125"PL | 51% |
Round, Square, or Slotted Holes, Which One is Better?
Why are perforated metal round hole patterns chosen more often than square or slotted holes? Because they offer the best combination of ease of manufacturing, low maintenance, and affordability. You also get the broadest selection of gauges, diameters, sheet size options and material choices, making it easier to get the ideal product for your needs. Round hole perforated metal also lasts longer than the other types, making it the most cost-effective alternative in the long run.


Round Hole Metal Products